[External] RE_ Thomas Borrow Pit - ADI Letter

From: Lawter,Butch
To: SSoencer,Jenna
Cc: Sams,Dan; Parr,Adam;ralphthomasjr(&hotmail.com;Werenko.Dale
Subject: [External] RE:Thomas Borrow Pit-ADI Letter
Date: Monday,June 28,2021 4:41:28 PM
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Thanks for taking my call to discuss the request for additional information regarding dewatering for
the referenced mining permit application. As we discussed, Mr.Thomas will use standard wet
mining methods to excavate the borrow material. The following is a summary of the typical wet
mining procedure that Mr. Thomas plans on using for the proposed mine:
• Above groundwater table:
o excavate material
o place material in stockpile
o load material and haul offsite
• Below groundwater table:
o excavate material
o allow groundwater to free drain from excavator bucket
o place material in stockpile
o allow remaining groundwater to free drain from stockpile. Stockpile area will be sloped
to surface drain into existing excavation. Additionally, water may drain through the
surficial soil into the groundwater table
o when sufficiently dried for transporting, load material and haul offsite
As we discussed, wet mining is the typical method used for mining shallow surface materials in
eastern North Carolina. There will be no dewatering or external discharge of groundwater from the
excavation in the proposed mine.
We request that this minor clarification not delay the processing of Mr. Thomas' application any
further.
If there are additional questions regarding the wet mining proposed for Mr. Thomas' mine, please
contact me.
Thanks.
R. S. (Butch) Lawter, Jr, PE
Director of Environmental Services
WithersRavenel
U
115 MacKenan Drive I Cary, NC 27511
Office: 919.469.3340 1 Direct: 919.535.5205
Mobile: [phone]
blawter(aDwithersravenel.com

INININININ
CONFIDENTIALITY AND NONDISCLOSURE
From: Spencer,Jenna <[e-mail]>
Sent: Monday,June 28, 2021 3:15 PM
To: [e-mail]
Cc: Lawter, Butch <[e-mail]>; Sams, Dan <[e-mail]>; Parr, Adam
<[e-mail]>
Subject:Thomas Borrow Pit-ADI Letter
Mr. Thomas,
Please see attached for the additional information request for the Thomas Borrow Pit. A hard copy is
being routed to you. Please let me know if you have any questions!
Thank you,
Jenna Spencer, PE
Assistant Mining Engineer
NC Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Mining Section
Office: 919.707.9227 1 Cell: 919.816.6151
E-mail: Jenna.Spencerencdenr.gov
1612 Mail Service Center
Raleigh, NC 27699
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